Napping-machine drum.



J. A. PBABAY H. S. GREENE.

NAPPING IIAOHINB DRUK.

unicum! Hum JULY 14. 1am.

Patented Jan. 30, 1912.

JOSEPH A. PRARAY .AND HARRY S. GREENE,

0F WOONSOCKET, RHODE ISLAND, AS-

SIGNOBS T0 WOONSOCKET NAPPING MACHINERY C0., OF WOONSOCKET, RHODE ISLAND.

NAPPING-MACHINE DRUM.

Specieation of Letters Yatent.

Patented Jan. 30, 1912.

Application tiled July 14, 1810. Serial No. 571,963.

To all whom it may concern:

Be it known that we, JosErH A. IBanxr and HARRY S. GREENE, citizens of the United States, residinrr at Woonsocket, in the county of Providence and State of Rhode Island, have invented new and useful Improvements in Napping-Machine Drums, of which the following is a specilication.

Our .invention relates to drums such as are employed in chines'; and it has for its object to provide for the mount-ing, of the napping rolls between the heads of the drum in such manuel' that the rolls are supported at points intermediate the drum heads by anti-friction means, this being materially adrantageous inasmuch as when mounted on anti-friction means at points intermediate the drum heads, the nap ing rolls are adapted to be rotated about their axes by but little power, and without subjecting the rolls or the connections between the same and the drum heads to strain, and being also advantageous inasmuch as it obriates the necessity of providing accommodations in the drum heads for the anti-friction means.

The invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of certain specific embodiments thereof, While its scope will be more particularly pointed out in the appended claim.

In the drawings which are hereby made a parthereof: Figure 1 is a section, taken in the plane indicated by the [ine 1-1 of Fig. 2 and illustrating the preferred embodiment. of our invention. Fi 2' shows the bearing in end elevation. Pigs. 3 and 4 are cross-sections taken in the planes indicated by the lines 3 3 and 4 4. respectively, of Fig. 1. Figs. 5 and are sectional views of modifications hereinafter specifi cally referred to.

Referring by letter to the said drawings, and more particularly to Figs. 1 to 4 thereof: A is one head of the rcvoluble drum comprised in the conventional planetary napping machine.

B is a spindle connected with and extend ing laterally inward from ilu.' head A, and" C la u bracket fixed with res ivf-t lo the hond A, and which carries the splndle B in suela manner that the latter is held against rolation. The spindle B is provided at. a. and b planetary napping ina-l with abntments against which are arranged cones o and d, respectively, and in races formed between the said cones and a shell e are arranged the balls f' which constitute the type of anti-friction devices we prefer to employ. The inner cone d is secured by a nut and a washer or other suitable means on the spindle B, and the shell e is snugly arranved and preferably, though not necessari v, fixed in the napping roll D which is tubular, as illustrated. v

Suitably fixed to and surrounding the portion of the tubular roll D which surrounds the antifriction support described is a collar E designed for enragement with the belt (not shown) thi-ouai the medium of which the napping rol D is rotated about it axis incidental to the rotation of the nappmg drum.

Il: will be gathered from the foregoing that the napping roll D serres to inclose and protect its anti-friction bearing, and that very little power applied through the collar E is required to rotate the roll D.

It will also be lgathered that the bracket C is adapted to he expeditiously and easily attached to the perimeter of a drum head, and that the spindle B and the anti-friction means interposed between the spindle and the napping roll D obviate the necessity of providing the head with means to receive the anti-friction support of the roll.

In Fig. 5 is shown a comparativelysimple and cheap construction designed more particularly for embodiment in small machines. The said construction diliers from that. shown in Figs. 1-4 in that hut one cone c5 is employed on the spindle B, the shell c5 is shaped accordingly.

In the modified construction of Fig. 6, the spindle B is provided with a easing' portion e which surrounds the end portion of the nappinv roll D and serves in combination with tie said roll and the collar E"l thereon to forni races for the two series of' anti-friction devices f". .preferably halls. in-

terposed between the easing and the roll.

lt. will be noted that in all ol" the illustrated elnbodinu'uts of our invention. the

anti-friction hearing.;` is applied either wille' in or without the napping roll instead of in or upon the head nl' tho nuppilngr drum as is the ordinary |'n:u-liro.

While we have illustrated the mounting ol hul: one end of the napping;l roll, wu'

would have it understood that both ends of the roll will be mounted in the same manner.

Having described our invention, what we claim and desire to secure by Letters-Patent, is:

'I he herein described planetary napping machine drum, consisting essentially of a revoluble head, a spindle fixed to and extending laterally inward from the head, a napping roll arranged entirely at the inner side of the head and supported by and arranged and adapted to turn Concentrically to the spindle and provided with means as a collar for engagement with n band that is adapted to turn the roll about its axis incident to revolution of the drum head, and anti-friction means interposed between the spindle and the roll.

In testimony whereof we have hereunto Set our hands 1n presence of two subscribing witnesses.

JOSEPH A. PRARAY. HARRY S. GREENE. Witnesses:

FRANCES L. COYLE, PETER COTO.

Copies o! thispatcnt may be obtained for tive cents each, by addressing the Commissioner of Patents, Washington, D. C. 

